The volume of an oxygen bottle, also known as an oxygen cylinder or tank, can vary depending on its size and capacity. Oxygen bottles come in various sizes to suit different purposes and applications, ranging from small portable cylinders used for medical oxygen therapy to larger industrial cylinders used in welding and cutting operations.

Standard sizes of oxygen cylinders for medical use include:

“E” cylinder: Approximately 0.7 cubic meters (700 litres) of oxygen at standard temperature and pressure (STP).
“D” cylinder: Approximately 0.42 cubic meters (420 litres) of oxygen at STP.
“M” cylinder: Approximately 3.15 cubic meters (3,150 litres) of oxygen at STP.
For industrial applications, oxygen cylinders can vary in size and capacity depending on the operation’s specific requirements. These cylinders can range from small portable cylinders to large stationary tanks with capacities measured in cubic meters or litres.

It’s important to note that the volume of oxygen contained in a cylinder is measured at standard temperature and pressure (STP), which is typically defined as 0°C (32°F) and 1 atmosphere (101.3 kPa or 14.7 psi) of pressure. The volume of oxygen delivered from a cylinder may vary depending on temperature, pressure, and flow rate.